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| Number | Title | Issue Date |
| 7285198 | Strip electrode with conductive nano tube printing An electrochemical test device for determining the presence or concentration of an analyte in an aqueous fluid sample comprises a substrate comprising a non-conductive material; a working electrode comprising a conductive film formed at least with carbon nanotubes, ... | 10/23/2007 |
| 7250095 | Enzyme electrodes and method of manufacture A non-mediated enzyme electrode comprises a base substrate (2) on which is provided an electrically conductive base layer (8) comprising finely divided platinum group metal or oxide bonded together by a resin; a top layer on the base layer (8), ... | 07/31/2007 |
| 7189341 | Electrochemical sensor ink compositions, electrodes, and uses thereof The invention is directed to conductive polymer compositions, catalytic ink compositions (e.g., for use in screen-printing), electrodes produced by deposition of an ink composition, as well as methods of making, and methods of using such compositions and electrodes.... | 03/13/2007 |
| 7018673 | Oxygen sensor and emission control system An emission control system is disclosed for determining a concentration of oxygen in a flow of gas which has a sensor. The sensor has a diffusion barrier, an electrolyte material, and a counter-electrode. The counter-electrode is configured to support the diffusion ... | 03/28/2006 |
| 7018568 | Highly catalytic screen-printing ink The invention is directed to conductive polymer compositions, catalytic ink compositions (e.g., for use in screen-printing), electrodes produced by deposition of an ink composition, methods of making, and methods of using thereof. An exemplary ink material comprises... | 03/28/2006 |
| 6827899 | Test device A test device for testing of analyte concentration in a fluid comprises: a housing (2) having an opening and containing a stack of sensors (16); a transport member (4) rotatably mounted in the opening of the housing, having an axis of rotation w... | 12/07/2004 |
| 6808619 | Electrode system In an electrode system, particularly for electrochemical sensors, which comprises a working electrode, a counterelectrode and an electrolyte, the counterelectrode is constituted by a material containing an elementary carbon, whereby the long-term stability of the el... | 10/26/2004 |
| 6660141 | Electrochemical sensor The present invention relates to an electrochemical sensor for a liquid sample. The sensor comprises a substrate (1) along which a liquid may travel by capillary action, said substrate being associated with an electrochemical detection arrangement (3) and... | 12/09/2003 |
| 6627058 | Thick film conductor composition for use in biosensors This invention is directed to a composition comprising: (a) platinum group metal powder, alloys, or mixtures thereof as a powder or deposited on graphite supports; (b) poly(glycol ether), derivatives, or mixtures thereof; (c) carbon-based electrically con... | 09/30/2003 |
| 6613205 | Electrochemical sensor An electrochemical sensor includes an electrochemically active sensor layer (sensor spot), which is applied by means of thick film techniques in at least one region of an electrically insulating, planar substrate, the surface of the sensor layer being bro... | 09/02/2003 |
| 6599408 | Thick film conductor composition for use in biosensors The invention is directed to polymer thick film conductor compositions comprising conductive metal particles selected from the group consisting of finely divided powders of platinum group metals and mixtures thereof or metallized graphite particles; in co... | 07/29/2003 |
| 6540891 | Test strip An improved disposable test strip for use in amperometric measurement of analytes in complex liquid media, such as blood, which has three or more electrodes has been developed. This strip is designed so that different electrical potentials can be maintain... | 04/01/2003 |
| 6464849 | Sensor for measuring a bioanalyte such as lactate The present disclosure relates to a sensor including a bundle of electrically conductive fibers. The sensor also includes a sensing material coating at least some of the fibers in the bundle, and an insulating layer that surrounds the bundle of electrical... | 10/15/2002 |
| 6379513 | Sensor connection means The invention relates to a sensor adapted for electrical connection to a power source having an electrical contact means (3). The sensor has a first insulating substrate (1) carrying a first electrode (2) and a second insulating substrate (7) carrying a s... | 04/30/2002 |
| 6287452 | Electrode for the electrochemical detection of nitric oxide Nitric oxide-specific electrodes are useful for in situ detection of nitric oxide in biomedical applications and have at least a surface region thereof which is capable of forming complexes with nitric oxide, for example, nitrosyl complexes. The nitric ox... | 09/11/2001 |
| 6284478 | Subcutaneous glucose electrode A small diameter flexible electrode designed for subcutaneous in vivo amperometric monitoring of glucose is described. The electrode is designed to allow "one-point" in vivo calibration, i.e., to have zero output current at zero glucose concentration, eve... | 09/04/2001 |
| 6284125 | Electrochemical cell A method for determining the concentration of a reduced (or oxidised) form of a redox species in an electrochemical cell of the kind comprising a working electrode and a counter electrode spaced from the working electrode by a predetermined distance, said... | 09/04/2001 |
| 6261440 | Interference free biosensor Provided are microparticle forms of carbon, carbon catalysts and carbon-containing electrically conductive materials which are covalently linked to peroxidase. The carbon:peroxidase conjugates are suitable for use as substrates in conventional electrodes.... | 07/17/2001 |
| 6225078 | Method for quantitative measurement of a substrate The invention provides a method for quantitative measurement of a substrate with high accuracy by electrochemically oxidizing an electron mediator which has been reduced by enzyme reaction thereby determining the substrate concentration based on a current... | 05/01/2001 |
| 6207369 | Multi-array, multi-specific electrochemiluminescence testing Materials and methods are provided for producing patterned multi-array, multi-specific surfaces for use in diagnostics. The invention provides for electrochemiluminescence methods for detecting or measuring an analyte of interest. It also provides for nov... | 03/27/2001 |
| 6180346 | Electropolymerizable film, and method of making and use thereof An electrode and method of preparing an electrode by electropolymerizing a film on the conductive working surface of an electrode. The electrode is modified by reductive electropolymerization of a thin film of poly[Ru(vbpy)32+ ] or p... | 01/30/2001 |
| 6117289 | Cholesterol sensor and method for producing the same A cholesterol sensor facilitating rapid measurement of serum cholesterol levels is disclosed. The sensor comprises an electrode system composed of at least a measuring electrode and a counter electrode and disposed on an electrically insulating base plate... | 09/12/2000 |
| 6113762 | Microbial electrode and microbial sensor The microbial electrode is constructed having a substrate(3) made of an insulating material, an electric conductor(2) which is fixed on the substrate and a membrane containing microorganism cells(1) which is fixed on the conductor. The microbial sensor(20... | 09/05/2000 |
| 6110696 | Electrochemical enzyme assay A diagnostic kit, method, and apparatus for electrochemically determining the presence or concentration of an analyte in a sample. A mixture is formed which includes the sample, an enzyme acceptor polypeptide, an enzyme donor polypeptide, and a labeled su... | 08/29/2000 |
| 6071392 | Cholesterol sensor A cholesterol sensor is disclosed which comprises an electrode system having a measuring electrode and a counter electrode formed on an electrically insulating base plate, an electrode coating layer for covering the electrode system and a reaction reagent... | 06/06/2000 |
| 6042714 | Method and chemical sensor for determining concentrations of hydrogen peroxide and its precursor in a liquid A new method which employs a mixed-valence cluster of Myz+ [Fe(II)(CN)6 ] coated on an electrode surface to determine hydrogen peroxide concentration electrochemically is developed. M of the mixed-valence compound can be C... | 03/28/2000 |
| 6017440 | Sensor arrays for detecting microorganisms A sensor array for detecting a microorganism comprising first and second sensors electrically connected to an electrical measuring apparatus, wherein the sensors comprise a region of nonconducting organic material and a region of conducting material compo... | 01/25/2000 |
| 6004441 | Biosensor A biosensor is fabricated by forming a metal film over the surface of a substrate through evaporation, sputtering or by gluing a metal foil, then splitting the metal film into three regions, and forming a reagent layer on an area of measuring electrode an... | 12/21/1999 |
| 6001228 | Device for performing measurements in fluids A device for performing electrochemical and/or optical measurements in fluids, includes a sensor part of substantially planar configuration carrying a plurality of sensors that are connected to conductive paths; a cover part, which includes a groove-shape... | 12/14/1999 |
| 5938903 | Microelectrodes and their use in an electrochemical arrangement with telemetric application This invention relates to a microelectrode comprising graphite, oil and, additionally, a compound selected from the group of lipids, glycolipids, lipoproteins, fatty acids, fatty acid derivatives, a water insoluble species and perfluorosulfonated compound... | 08/17/1999 |
| 5916156 | Electrochemical sensors having improved selectivity and enhanced sensitivity The present invention describes electrochemical sensors, preferably electrochemical biosensors, in which the reference electrode and the measuring electrode are separated from one another by a porous, electrically nonconductive sheet material.... | 06/29/1999 |
| 5849174 | Electrodes and their use in analysis A method for indicating the concentration of a substance in solution includes passing an alternating voltage between a first electrode structure having coated thereon a polymer and a second separate counter electrode in the solution. The polymer is in one... | 12/15/1998 |
| 5739039 | Microelectrodes and amperometric assays A photo-ablation technique is used to create apertures (4) in a layer (2) of electrically insulating material and allow electrically conducting material (3) exposed through the apertures to create a microelectrode. The microelectrode can be used for assay... | 04/14/1998 |
| 5728281 | Implantable medical device including an arrangement for measuring a blood property having a carbon reference electrode An implantable medical device for in vivo electrochemical measurements of blood properties, such as measurements of, inter alia, oxygen pressure, glucose and pH, avoids the problem with the reference electrodes currently in use which cause inflammatory re... | 03/17/1998 |
| 5707502 | Sensors for measuring analyte concentrations and methods of making same A sensor for measuring a concentration of an analyte in a solution. The sensor comprises a substrate layer, an electrode layer and an immobilized enzyme layer. The sensor further includes an enzyme/polymer layer and/or a hydrophobic layer. The enzyme/poly... | 01/13/1998 |
| 5708247 | Disposable glucose test strips, and methods and compositions for making same An improved disposable glucose test strip for use in a test meter of the type which receives a disposable test strip and a sample of blood from a patient and performs an electrochemical analysis is made using a working formulation containing a filler, an ... | 01/13/1998 |
| 5704354 | Electrocatalytic glucose sensor An electrocatalytic sensor in catheter type of construction for determining glucose in body fluids, especially in the blood, having the following features: a tubular body made of bio-compatible material that is subdivided into three sections, a sleeve-sha... | 01/06/1998 |
| 5676820 | Remote electrochemical sensor An electrochemical sensor for remote detection, particularly useful for metal contaminants and organic or other compounds. The sensor circumvents technical difficulties that previously prevented in-situ remote operations. The microelectrode, connected to ... | 10/14/1997 |
| 5672256 | Multi-electrode biosensor and system and method for manufacturing same A multi-electrode biosensor for sensing a material present in a sample includes a substrate, a plurality of working electrodes formed on the substrate, a counter electrode formed on the substrate, and a reference electrode formed on the substrate.... | 09/30/1997 |
| 5620579 | Apparatus for reduction of bias in amperometric sensors Apparatus and method are provided for determining the concentration of an analyte in a fluid test sample by applying the fluid test sample to the surface of a working electrode which is electrochemically connected to a reference electrode which surface be... | 04/15/1997 |
